| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fonseca, Carlos
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2021Durable electroless deposited Ni-P films on NBR for dynamic contacts. Characterization and tribological performancecitations
- 2021The Arch Electrode: A Novel Dry Electrode Concept for Improved Wearing Comfortcitations
- 2020Electroless Deposition of Ni-P Coatings on HNBR for Low Friction Rubber Sealscitations
- 2018Contact Pressure and Flexibility of Multipin Dry EEG Electrodescitations
- 2018Mechanically robust silver coatings prepared by electroless plating on thermoplastic polyurethanecitations
- 2015Electrochemical and structural characterization of nanocomposite Ag-y:TiNx thin films for dry bioelectrodes: the effect of the N/Ti ratio and Ag contentcitations
- 2015Evolution of the functional properties of titanium–silver thin films for biomedical applications: Influence of in-vacuum annealingcitations
- 2015Development of polymer wicks for the fabrication of bio-medical sensorscitations
- 2014Electrochemical behaviour of nanocomposite Ag-x:TiN thin films for dry biopotential electrodescitations
- 2014Electrical characterization of Ag:TiN thin films produced by glancing angle depositioncitations
- 2014Ag:TiN nanocomposite thin films for bioelectrodes : the effect of annealing treatments on the electrical and mechanical behaviourcitations
- 2014Electrochemical behaviour of nanocomposite Agx:TiN thin filmsfor dry biopotential electrodescitations
- 2014Electrical characterizationofAg:TiNthin films producedbyglancing angle depositioncitations
- 2014Agy:TiNx thin films for dry biopotential electrodes: the effect of composition and structural changes on the electrical and mechanical behaviourscitations
- 2014Ag:TiN nanocomposite thin films for bioelectrodes: The effect of annealing treatments on the electrical and mechanical behaviorcitations
- 2013TiAgx thin films for lower limb prosthesis pressure sensors: Effect of composition and structural changes on the electrical and thermal response of the filmscitations
- 2013TiAgx thin films for lower limb prosthesis pressure sensors: Effect of composition and structural changes on the electrical and thermal response of the filmscitations
- 2013Structural and Morphological Changes In Ag:TiN Nanocomposite Films promoted by in-vacuum annealingcitations
- 2013Growth characteristics and properties of nanocomposite Ag-doped TiN thin films produced by glancing angle deposition
- 2013Influence of composition, bonding characteristics and microstructure on the properties of AlNxOy films
- 2013Influence of composition, bonding characteristics and microstructure on the electrochemical and optical stability of AlOxNy thin filmscitations
- 2013Nanocomposite Ag:TiN thin films for dry biopotential electrodescitations
- 2011Plasma surface activation and TiN coating of a TPV substrate for biomedical applicationscitations
- 2011Novel TiNx-based biosignal electrodes for electroencephalographycitations
- 2009The role of composition, morphology and crystalline structure in the electrochemical behaviour of TiNx thin films for dry electrode sensor materialscitations
- 2003Corrosion behaviour of commercially pure titanium shot blasted with different materials and sizes of shot particles for dental implant applicationscitations
- 2001Corrosion behaviour of titanium in biofluids containing H2O2 studied by electrochemical impedance spectroscopycitations
Places of action
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article
The role of composition, morphology and crystalline structure in the electrochemical behaviour of TiNx thin films for dry electrode sensor materials
Abstract
A morphological, structural and electrochemical study of titanium nitride (TiNx) thin films, obtained by DC reactive sputtering on titanium substrates, was carried out for a wide range of compositions (0 < x < 1.34) aiming a selection of the best coatings for dry biomedical electrodes. The films displayed a columnar-type structure, with morphologies strongly dependent on the composition: a compact and smooth surface was found for the Ti-rich films, (x < 1), whereas the N-rich films, (x >= 1) displayed a rough and porous structure. The electrochemical study of the TiNx films was performed in synthetic sweat, aiming at simulating the contact with the skin. The voltammetric analysis showed anodic currents higher for TiNx films than for titanium for low and medium polarization potentials, whereas for potentials beyond 2 V the blocking behaviour of the TiNx films allowed them to display lower current values. The passive dissolution currents in the sub-mu A/cm(2) range and the charge transfer resistances of the order of the M Omega proved the excellent stability of all films in sweat conditions. Finally, the electrochemical noise analysis showed that the near-stoichiometric and N-rich films display the lowest noise, being therefore the most suitable for electrode applications, where signals in the microvolt range, such as the electroencephalographic (EEG) signals, are to be monitored.